Question

list some important method which can prevent rusting of iron

Answer 1

(1)by oiling and grezzing
(2)by galvanisation
(3)by making alloys

Answer 2

Prevention of Rusting : Both Air and water are needed together to rust the iron. The only way to prevent iron from rusting is to keep air and water away from it. ... By Galvanisation : The process of coating a thin layer of zinc on the surface of iron objects